USB Handy Digital Sound Noise Level Meter Decibel Pressure Logger with Tripod Mounting

This Digital Sound Level Meter is an instrument to measure Sound Pressure Level in decibels (dB). It is featured with wide measuring range (40 ~ 130 dB), Bar-Graph Indication, A/C frequency weighting, Fast / Slow response and Maximum Hold function. It also provides a windscreen to filter-out unwanted signals. Moreover, it can connect to PC for Data Logging with optional USB cable.

This is a portable, handy instrument for sound quality control in office, home, school and construction site. It has wide range of applications such as noise pollution studies, research and other industrial use.

Specifications:
Sound Level: 40 ~ 130 dB With Level Selecting Button Switches
Accuracy: ¡À2dB (under reference condition)
Measuring Level: 40~130dBA, 40~130dBC.
Frequency Range: 31.5 Hz ~ 8.5 kHz
Linearity/Dynamic Range: 30dB
Frequency weighting: A and C features
Digital LCD: 45 x 35mm with 4 digits
Resolution: 0.1dB
Display: 0.5 secretary
Sampling Rate: 2 times/second
Dynamic Characteristic (Time weighting): FAST (high speed) / SLOW (low speed)
1 bar graph represents 1dB in the Analog Bar Graph
Bar Graph: 50dB scale at 1dB step for monitoring current sound pressure level display period of 50mS
Level Ranges: 40 ~ 70dB, 60 ~ 90dB, 80 ~ 110dB, 100 ~ 130dB, 40 ~ 130dB
Load indication: Use the symbol OVER (indicating over range) and UNDER (indicating less than lower limit of the range)
AC output: 0.707 Vrms at FS output impendance aprrox. 600?
Microphone: 1/2 inch electret condenser microphone
Maximum Hold
Working Environment
Temperature: 0~40¡ãC (32~104¡ãF)
Humidity: 10~70% RH
Storage Environment
Temperature: -10~50¡ãC (14~122¡ãF)
Humidity: 10~80% RH
Power Supply: 6F22 9V alkaline cells/battery or DC 9V 100mA (not included)
Dimension: 235 x 70 x 30mm
Weight: approx. 380g